const  setCookie=(name, value, days)=> {
    var expires = "";
    if (days) {
        var date = new Date();
        date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
        expires = "; expires=" + date.toUTCString();
    }
    document.cookie = name + "=" + (value || "") + expires + "; path=/";
}

const getCookie=(name)=> {
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for (var i = 0; i < ca.length; i++) {
        var c = ca[i];
        while (c.charAt(0) === ' ') c = c.substring(1, c.length);
        if (c.indexOf(nameEQ) === 0) return decodeURIComponent(c.substring(nameEQ.length, c.length));
    }
    return null;
}

const deleteCookie = (name, path = '/', domain = null) => {
    // 创建一个过去的日期，使 Cookie 立即过期
    const date = new Date(0).toUTCString();
    // 构建 Cookie 字符串
    let cookieString = `${name}=; expires=${date}; path=${path}`;
    if (domain) {
        cookieString += `; domain=${domain}`;
    }
    // 设置新的 Cookie，使其立即过期
    document.cookie = cookieString;
};